Shell trains oil spill responders in Alaska

October 4, 2012

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Geoff Merrell, superintendent of emergency response for Shell Alaska, shows one of the improvements made to the Nanuq -- and its support vessels -- for Arctic conditions. This life boat has a collar around its propeller to prevent ice from clogging it. It also is made of stainless steel instead of bronze. (Jennifer A. Dlouhy / The Houston Chronicle)

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Geoff Merrell, superintendent of emergency response for Shell Alaska, shows one of the improvements made to the Nanuq -- and its support vessels -- for Arctic conditions. This life boat has a collar around its propeller to prevent ice from clogging it. It also is made of stainless steel instead of bronze. (Jennifer A. Dlouhy / The Houston Chronicle)